Instant Ocean SeaTest Hydrometer

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This is a Product Review for: Instant Ocean SeaTest Hydrometer

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AS2141

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MSRP: $14.99

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$13.49

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At Marine Depot, we stand behind our products. That is why we offer a 60-day return period: one of the best in the industry! Learn More

Instant Ocean Aquarium SuppliesInstant Ocean is one of the aquarium industry`s most trusted brands of marine salt. Instant Ocean products are designed for aquarists who wish to re-create a thriving ocean habitat in their own home. Instant Ocean Sea Salt is one of the most popular brands on the market and is used by public aquariums, zoos and marine adventure parks throughout the country. Instant Ocean continually refines both the ingredients and the manufacturing process of their salt mix to make sure every necessary major and minor trace element is present in every single batch.

Instant Ocean SeaTest Hydrometer
Reviews

GREAT!

by
ERIC COLEGROVE

Excellent!

Posted: 7/22/2015 from DEMOREST, GA UNITED STATES

5.05

Experience Level:
Intermediate

Comments:All the "experts" tell you to get a refractometer. If used properly, a hydrometer is sufficiently accurate. Maybe not if running experiments for publication in a scientific journal. But just fine for reef tanks. Someone here described the bast way to use it without getting bubbles on the reading arm. Very good advice. Save yourself $50 and spend it on corals and/or fish.

STAY AWAY

by
Rose Lee

Unsatisfactory

Posted: 9/9/2014 from RENTON, WA UNITED STATES

0.55

Experience Level:
Intermediate

Comments:Reading is way off. I setup my new tank at 1.024 according to this product. After my tank cycled I brought my water to the lfs for them to check my param and salinity reads 1.029. Luckily no fish or coral!

Good

by
Fred Oehmke

Great

Posted: 3/26/2014 from Novi, MI UNITED STATES

4.05

Experience Level:
Intermediate

Comments:I have used this type of hydrometer in the past and continue to use it as a cheap backup. These instruments are fairly accurate and good to have around. I always check against a refractometer to determine how close the hydrometer is. I have not seen one that has been right on and I have seen some as far off as 1.005 from actual...that is enough to upset certain inverts and species sensative to salinity. Good product for what it is. Thanks MarineDepot for the great service

Great item for price

by
JOHN J

Excellent!

Posted: 3/6/2014 from Forest Hills, NY UNITED STATES

5.05

Experience Level:
Expert

Comments:I have been able to keep my livestock healthy for at least 10 years using this product. While not as accurate as a refractometer, it's very close. I have two of these and they test only about .002 higher than the refractometer. For the price and ease of use it's a great way to get started and keep your hands dry. Clean up with tap water is a breeze. Also this item is very easy to read without glasses or bright lights. Some other reviews claim this item was reading way off in terms of accuracy. These can get clogged up with salt if water is left too long...Also this item requires a seasoning period for about 24 hours...You put salt water in there for a day before normal use...do this only when you first get it or after a harsh cleaning. Great product

Gets the job done.

by
JAMES PETERSON

Great

Posted: 7/3/2012 from TRAVERSE CITY, MI UNITED STATE

4.05

Experience Level:
Beginner

Comments:Mine worked great, I have a Digital refractometer as well and have tested it against the more accurate refractometer and was always dead on. The big complaint is you have to slowly fill it and then knock the bubbles off, and there is always a bubble or two that doesn't want to let go leaving me fighting to get it off. If you can't afford a refractometer (I highly recommend the Milwaukee) I would highly recommend this product otherwise buy a digital and save yourself some time and probably money as you may end up buying one anyways. Otherwise this hydrometer gets the job done as long as you follow the directions.

Instant Ocean SeaTest Hydromet

Stay Away

by
artjaro

Unsatisfactory

Posted: 6/8/2009 from KISSIMMEE, FL UNITED STATES

1.05

Experience Level:
Beginner

Comments:This is a Lemon stay away. after taking it home and trying it i found it was way off from 4 other tests on the same water sample. when they read 2.24 it read over 3.0. and severl stores told me after the fact they stopped carrying this because that very reason.

Effective

by
GENOS

Great

Posted: 5/16/2008 from HUDSON, OH UNITED STATES

4.05

Experience Level:
Expert

Comments:Use correctly for best results. Rinse in fresh water, fill slowly to eliminate bubbles. Tap before you read. I have had this hydrometer for 15 years and test everyday. I consistently get results that have been confirmed with other arm reading devices. Refraction is best...however this one is an easy to use, suitable for daily use tool.